Supercell over Laramie
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Wyoming Snow Precipitation Update


United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of FRIDAY: OCTOBER 26 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.1 .5 220* 5.0 1.7 294 COTTONWOOD CREEK 7600 1.9 .7 271* 5.0 2.5 200 GRANITE CREEK 6770 1.3 .4 325* 4.1 1.5 273 GRASSY LAKE 7265 1.2 1.1 109* 5.8 2.8 207 GROS VENTRE SUMMIT 8750 2.0 1.1 182* 4.0 1.5 267 LEWIS LAKE DIVIDE 7850 1.3 .9 144* 5.6 2.7 207 PHILLIPS BENCH 8200 1.5 1.0 150* 5.0 2.0 250 SALT RIVER SUMMIT 7600 .2 .3 67* 2.5 1.6 156 SNAKE RIVER STATION 6920 .1 .4 25* 4.6 1.9 242 SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.2 155 THUMB DIVIDE 7980 1.0 .6 167* 4.3 1.7 253 TOGWOTEE PASS 9580 4.6 2.1 219* 5.6 2.3 243 TWO OCEAN PLATEAU 9240 5.8 2.5 232* 6.1 2.6 235 WILLOW CREEK 8450 2.5 1.4 179* 6.4 3.1 206 ----- ----- Basin wide percent of average 187* 224 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.5 2.2 205* 4.4 1.8 244 BLACK BEAR 8170 3.6 2.2 164* 5.9 2.9 203 CANYON 8090 1.2 .5 240* 3.9 1.5 260 FISHER CREEK 9100 5.7 2.2 259* 6.7 2.7 248 MADISON PLATEAU 7750 1.6 1.2 133* 4.7 2.1 224 NORTHEAST ENTRANCE 7350 -M .2 * -M 1.3 * PARKER PEAK 9400 4.2 2.1 200* 5.3 1.9 279 SYLVAN LAKE 8420 2.0 1.6 125* 5.6 2.2 255 THUMB DIVIDE 7980 1.0 .6 167* 4.3 1.7 253 TWO OCEAN PLATEAU 9240 5.8 2.5 232* 6.1 2.6 235 WHISKEY CREEK 6800 .9 .6 150* 4.3 1.9 226 WHITE MILL 8700 4.1 1.6 256* 5.1 2.3 222 WOLVERINE 7650 .0 .4 0* 3.2 1.5 213 ----- ----- Basin wide percent of average 195* 237 WIND RIVER BURROUGHS CREEK 8750 2.0 .8 250* 3.9 1.4 279 COLD SPRINGS 9630 .2 .8 25* 2.3 1.6 144 DEER PARK 9700 1.7 2.0 85 3.1 2.1 148 HOBBS PARK 10100 1.5 1.7 88* 3.1 1.8 172 LITTLE WARM 9370 1.1 .9 122* 3.1 1.5 207 SOUTH PASS 9040 .3 1.2 25* 2.2 1.8 122 ST. LAWRENCE ALT 8620 .2 .6 33* 1.4 1.5 93 TOGWOTEE PASS 9580 4.6 2.1 219* 5.6 2.3 243 TOWNSEND CREEK 8700 .3 .8 37* 2.4 1.8 133 ----- ----- Basin wide percent of average 109* 172 BIGHORN BASIN BALD MTN. 9380 2.9 2.3 126* 3.7 2.0 185 BEAR TRAP MEADOW 8200 .6 .5 120* 1.8 1.5 120 BLACKWATER 9780 5.0 2.6 192* 4.8 2.3 209 BONE SPRINGS DIV 9350 2.1 2.2 95 3.8 2.1 181 EVENING STAR 9200 4.1 2.2 186* 6.2 2.3 270 GRAVE SPRINGS 8550 1.1 .8 138* 2.5 1.8 139 KIRWIN 9550 3.4 1.5 227 4.7 1.5 313 MARQUETTE 8760 .8 1.6 50 2.9 1.9 153 MIDDLE POWDER 7760 2.0 1.1 182* 2.4 2.2 109 OWL CREEK 8975 .7 .7 100 2.3 1.0 230 POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.6 194 SHELL CREEK 9580 3.9 2.3 170 4.6 1.7 271 SYLVAN LAKE 8420 2.0 1.6 125* 5.6 2.2 255 SYLVAN ROAD 7120 .5 .4 125* 4.9 1.8 272 TIMBER CREEK 7950 .1 .7 14 3.0 1.4 214 YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353 ----- ----- Basin wide percent of average 143* 214 SHOSHONE RIVER BLACKWATER 9780 5.0 2.6 192* 4.8 2.3 209 EVENING STAR 9200 4.1 2.2 186* 6.2 2.3 270 KIRWIN 9550 3.4 1.5 227 4.7 1.5 313 MARQUETTE 8760 .8 1.6 50 2.9 1.9 153 SYLVAN LAKE 8420 2.0 1.6 125* 5.6 2.2 255 SYLVAN ROAD 7120 .5 .4 125* 4.9 1.8 272 YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353 ----- ----- Basin wide percent of average 162* 255 POWDER-TONGUE BEAR TRAP MEADOW 8200 .6 .5 120* 1.8 1.5 120 BIG GOOSE 7990 1.6 .7 229* 4.0 1.8 222 BONE SPRINGS DIV 9350 2.1 2.2 95 3.8 2.1 181 BURGESS JUNCTION 7880 1.4 1.2 117* 3.2 1.9 168 CLOUD PEAK RESERVOIR 9860 2.7 1.2 225* 5.1 2.2 232 DOME LAKE 8880 1.9 1.5 127 4.4 2.1 210 GRAVE SPRINGS 8550 1.1 .8 138* 2.5 1.8 139 HANSEN SAWMILL 8360 .8 .7 114 2.7 1.5 180 MIDDLE POWDER 7760 2.0 1.1 182* 2.4 2.2 109 POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.6 194 SUCKER CREEK 8880 1.7 1.1 155* 3.4 2.0 170 TIE CREEK 6870 .0 .6 0* 2.9 2.1 138 ----- ----- Basin wide percent of average 136* 172 BELLE FOURCHE BLIND PARK 6890 .1 .4 25* 1.5 2.2 68 COLE CANYON 5910 .0 .6 0* 1.2 -M * NORTH RAPID CREEK 6130 .0 .4 0* 1.1 2.1 52 ----- ----- Basin wide percent of average 7* 60 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .6 0* 3.6 2.0 180 DIVIDE PEAK 8860 1.3 1.4 93* 2.6 2.3 113 ELK RIVER 8700 -M .5 * 3.2 1.9 168 JOE WRIGHT 10120 2.2 2.0 110* 4.8 2.8 171 NORTH FRENCH CREEK 10130 2.3 2.6 88* 3.8 2.8 136 OLD BATTLE 9920 2.5 2.5 100* 4.3 3.0 143 SAGE CREEK BASIN 7850 .0 .8 0* 2.1 1.3 162 SOUTH BRUSH CREEK 8440 1.0 .6 167* 3.1 2.2 141 TOWER 10500 2.7 2.7 100* 4.7 3.3 142 WEBBER SPRINGS 9250 1.3 1.5 87* 3.5 2.6 135 WILLOW CREEK PASS 9540 2.1 .9 233* 3.0 1.7 176 ----- ----- Basin wide percent of average 99* 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 1.1 1.8 61* 2.6 2.1 124 CASPER MTN. 7850 1.6 1.4 114* 3.3 2.1 157 DEADMAN HILL 10220 2.4 1.8 133* 3.3 2.1 157 DEER PARK 9700 1.7 2.0 85 3.1 2.1 148 LAPRELE CREEK 8375 .7 .8 87* 2.2 1.6 138 RENO HILL 8500 2.0 1.4 143* 3.6 2.1 171 ROACH 9700 1.9 .9 211* 3.2 1.9 168 SAND LAKE 10050 3.6 2.7 133* 4.2 2.6 162 SOUTH PASS 9040 .3 1.2 25* 2.2 1.8 122 WINDY PEAK 7900 .8 .4 200* 1.8 1.5 120 ----- ----- Basin wide percent of average 112* 148 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .4 25* 2.0 1.6 125 DIVIDE PEAK 8860 1.3 1.4 93* 2.6 2.3 113 OLD BATTLE 9920 2.5 2.5 100* 4.3 3.0 143 SANDSTONE RS 8150 .0 .4 0* 2.2 1.9 116 WHISKEY PARK 8950 1.0 1.3 77* 3.7 2.4 154 ----- ----- Basin wide percent of average 82* 132 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 1.0 100* 2.0 1.5 133 BLIND BULL SUM 8900 1.8 1.3 138* 3.1 1.9 163 EAST RIM DIVIDE 7930 .0 .5 0* 2.1 1.1 191 ELKHART PARK G.S. 9400 1.1 .7 157* 2.6 1.6 162 GROS VENTRE SUMMIT 8750 2.0 1.1 182* 4.0 1.5 267 KENDALL R.S. 7740 .3 .5 60* 2.3 1.3 177 LOOMIS PARK 8240 1.0 .7 143* 2.5 1.5 167 NEW FORK LAKE 8340 .6 .4 150* 2.3 1.3 177 SNIDER BASIN 8060 .2 .6 33* 1.7 1.4 121 SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.2 155 TRIPLE PEAK 8500 1.4 .9 156* 4.5 1.9 237 ----- ----- Basin wide percent of average 128* 177 LOWER GREEN RIVER HAMS FORK 7840 .0 .3 0* 1.6 1.2 133 HEWINTA 9500 .0 .7 0* 4.3 2.0 215 HICKERSON PARK 9100 .3 .3 100* 2.9 1.5 193 HOLE-IN-ROCK 9150 .4 .3 133* 3.4 1.4 243 INDIAN CREEK 9425 1.7 1.2 142* 2.8 2.2 127 KELLEY R.S. 8180 .6 .7 86* 2.8 1.8 156 STEEL CREEK PARK 10100 3.9 1.4 279* 4.6 1.9 242 ----- ----- Basin wide percent of average 141* 187 UPPER BEAR RIVER BUG LAKE 7950 .1 1.0 10* 1.5 1.9 79 HAYDEN FORK 9100 .2 .7 29* 3.3 2.0 165 KELLEY R.S. 8180 .6 .7 86* 2.8 1.8 156 LILY LAKE 9050 .4 .8 50* 3.4 2.0 170 MONTE CRISTO 8960 .2 1.3 15* 3.4 2.3 148 SALT RIVER SUMMIT 7600 .2 .3 67* 2.5 1.6 156 TRIAL LAKE 9960 1.2 1.6 75* 2.7 2.3 117 ----- ----- Basin wide percent of average 45* 141 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. Contact your state water supply staff for assistance. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.